As I am in China everybody knows, that many sites are blocked or slowed down. Also and mainly GOOGLE. I pledge to all programmers to include all their scripts and do not use any referrals to other pages. Googleapis or Googlefonts are NOT accessible in China. Every attempt of a front end page does slow down the page for minutes!!! Or the page won't load anyway.

I comment the following in order to get simpleImagePro running at all in admin section!!
Still testing what else is not working. Grep found about 30 references in the joomla directory.

function onDisplay($name)
{
$document = JFactory::getDocument();
// if (version_compare(JVERSION, '3.0', 'lt'))
// {
// $document->addScript('//ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js');
// }
// else
// {
JHtml::_('jquery.framework');
// }

And please note, that VPN is also blocked and shut down in China, as they found out how to detect VPN.
So a VPN is now solution. We must obey the Chinese laws and therefore please code our programs accordingly.
Please also never use the Facebook or twitter icons from facebook page, as they also blocked and slow down the loading immensely.
First I also get crazy and angry about this, but it doesn't help. Maybe this is a lesson for us not rely too much on google, facebook and co.

I am frustrated. No matter which pop-up engine I choose NOTHING works. The image just opens in a new window.
It is a pity, that K2 requires just this gallery. I cannot use K2 because of their careless programming, using external links to blocked sites.

Also the media manager doesn't work at all. Not loading!

K2 has an option to use local versions of jQuery and jQuery UI for cases like these.
Also SigPro has the option to disable jQuery loading on the frontend. You can use your version of jQuery in your template.